https://www.rohde-schwarz.com/kr/applications/decoding-secondary-surveillance-radar_56279-1075137.html
Decoding secondary surveillance radar | Rohde & Schwarz
Secondary surveillance radar (SSR) bridges the gap between communications systems and classic radar systems. Despite the increasing capabilities of mobile...
secondary surveillance radardecodingrohdeschwarz
https://www.eurocontrol.int/publication/secondary-surveillance-radar-code-allocation-list-icao-eur-region-cal
Secondary Surveillance Radar Code Allocation List for the ICAO EUR Region (CAL) | EUROCONTROL
The SSR Code Allocation List for the ICAO EUR Region (CAL) documents the agreed allocation of SSR codes to States and air traffic system (ATS) units.
secondary surveillance radar
https://www.gov.uk/government/publications/regulatory-article-ra-3037-secondary-surveillance-radar-ssr-alone-operations
Regulatory Article (RA) 3037: secondary surveillance radar (SSR) alone operations - GOV.UK
RA withdrawn, contents incorporated into another RA as detailed within the document.
secondary surveillance radar